Grammar Lesson Monday: Apostrophes with Letters and Numbers

Welcome to Grammar Lesson Monday!
This continuous series will address many common grammar mistakes made in the media and that I've seen more than once.  I strive to make the world a better place with good grammar.

Today, we will learn about alphabet letters, numbers, and apostrophes.

When alphabet letters are talked about in the plural, it is usually accompanied by an apostrophe.
Don't forget to dot your i's and cross your t's.

However, when the alphabet letter is capitalized, the apostrophe is not necessary.
He got all As this semester.
My family's IQs soar into the genius range.

When referring to a decade of years, it is also not necessary to put in an apostrophe.
The 1920s were a turbulent decade.

That's it for today.  Celebrate good grammar!

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